3157 LED Bulb HP48 LED Amber Set of 4 Diode Dynamics

LED Indicators. The factory incandescent turn signals on the Ford Flex illuminate in a slow glow, taking a moment to turn off and on. With replacement LED bulbs, you can immediately update your vehicle with the instant on-off blinking of modern LEDs. This instant activation adds a modern and distinct look to the Flex. Dual Brightness. The Flex uses a 3157 dual-filament bulb. They light up with low power as parking lights, then they get brighter when the turn signal or hazards are activated. The brightness ratio of your factory bulbs is traditionally 15:100, or 15 percent lumen output for the dim function. Diode Dynamics bulbs are designed to match this, so there is enough distinction between low and high brightness levels. As with all Diode Dynamics LED bulbs, these turn signal bulbs are rated with accurate, measured lumen figures, not calculations or guesses. Switchback. The dual-filament function of your factory turn signal bulbs gives you the ability to choose a unique LED bulb mode